February 20, When you alter one, the other responds the same way — even if they're thousands of miles apart. Quantum computing is a new generation of technology that involves a type of computer million times faster than the most sophisticated supercomputer we have in the world today. One example is the device created by D-Wave. Share This Article. Quantum theory is a branch of physics which deals in the tiny world of atoms and the smaller subatomic particles inside them, according to the journal Documenta Mathematica opens in new tab. Business Intelligence.